A230623 - OEIS

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A230623 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`15`
`3`		`52`
`4`		`240`
`5`		`1121`
`6`		`4888`
`7`		`20047`
`8`		`77280`
`9`		`277441`
`10`		`1093425`
`11`		`5279468`
`12`		`23647519`
`13`		`99429196`
`14`		`393425745`
`15`		`1457109628`
`16`		`4968639359`
`17`		`24553864319`
`18`		`113193708472`
`19`		`488133974353`
`20`		`1980778750800`
`21`		`7547952442399`
`22`		`26710380775592`
`23`		`112605054449252`

[4,15,52,240,1121,4888,20047,77280,277441,1093425, 5279468,23647519,99429196,393425745,1457109628, 4968639359,24553864319,113193708472,488133974353, 1980778750800,7547952442399,26710380775592, 112605054449252]

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Last modified September 19 09:52 EDT 2024. Contains 376008 sequences. (Running on oeis4.)